Double Glazed Windows Repairs
There are many reasons your double glazed windows might require repair, from condensation between panes to draughts and dropped or sagged frames. The majority of these issues are fixable.
Try lubricating the hinges, handles, and mechanism of your door or window when it is difficult to open. This is usually a cheap, short-term fix.
Broken Panes
When a window pane breaks it loses its insulation properties and can create a draft. If the muntins which divide the glass panes are also broken, moisture can leak between them causing condensation or mildew, or mould. This can make your home less efficient in energy use. A damaged window should be repaired by an expert to ensure that you get the correct seal and the optimum energy efficiency.
Firstly, you'll need to remove the broken glass. Start by placing an inexpensive glass cutter from an appliance store beneath the broken pane. It's recommended to lubricate the cutter with lightweight oil before you begin. This will stop the glass from breaking too easily. Then, you can use the tool's ball-shaped end to loosen the fragments, which should come off fairly quickly.
Once the glass is removed, scrape away any old glazing compound from the recess of the frame. This will expose the glazier's clips and pins that hold the glass in the frame. Replace them if you notice any corrosion. If the window is wooden, the glazier's points can be re-used if they're still intact.
The next step is to prepare the surface of the frame for reglazing. Apply a continuous strip compound to the recess using the caulking tool. Make use of a premium putty such as a Glazier's compound that is contained in cartridge. Let it dry before installing the glass. Reinstall the metal clips if they are on the frame. Reinstall the divider muntins.
Condensation
Condensation is one of the most common issues that double-glazed windows can experience particularly in winter months. It's usually caused by excessive moisture in the house as warm air meets cold glass, which then forms into water droplets and then collects in the corners of your windows or across the frame. You can stop this from happening by opening your windows more frequently and improving ventilation with extractor fans, and utilizing dehumidifiers. If condensation is still a problem, it's important to call in an expert to determine the root of the issue. You can then fix or replace your windows if necessary.
It's also important to note that condensation on a double-glazed window can actually be an indication of a failing seal. This is because the vacuum seal that was applied by the manufacturer can break down in time and allow cool air to make its way between the panes. This could lead to fogging of the window and eventually, mold growth if not addressed quickly enough.
You can use a hairdryer to get rid of excess moisture. This is a temporary fix and should be used only as a final alternative. If the condensation has left for a long time it may be experiencing mold or dampness within your home, which must be dealt with by a professional.
Professionals can seal your double-glazed window to provide a longer-lasting solution. They will remove the affected glass pane and clean the gap. They'll then pipe hot air into the space to dry out any moisture. During the process, they'll also check for any damage or growth of mould, mildew or mildew and then perform an air draughtproofing treatment to ensure that your windows are fully functional and energy efficient.
Draughts
As time passes by, the rubber seals around the edges of your insulated glass can break down and this can create a draught in space between the two panes. This is typically a simple problem that can be fixed by re-installing the gaskets and this will result in a solid and airtight seal. This will allow warm air inside your home and the colder air out, saving you money on your energy bills.
Misted double glazing is a sign that the seals in the sealed unit (sometimes called a DGU) have been blown. The unit is comprised of two panes of glass that are separated by an insulating bar that creates an insulating gap and then filled with gas, such as argon for example, to make the window airtight. If the seal is blown water vapour can enter your space through the gap. This can cause condensation between the glass panes, which is not able to be removed.
Fortunately it is a simple problem to fix, and the windows can be replaced very quickly by professionals who have all the right tools and know how to do it correctly. The expert will employ an instrument designed to push the new seals in place and is generally faster than doing it by hand. These tools feature an edge that can be used to push the seals into corners.
In some cases, a professional may be able to 'reseal' your windows by drilling a small hole into the window and adding a special desiccant material or putty. This is an economical alternative to replacements, and will give you an effective draught-proofing solution for your double glazing.
Faulty Hinges
Many people have encountered misted double-glazing. It could be caused by a cracked or broken glass or frame or even a broken seal. The good news is that this can often be fixed. Usually, this means making a new seal between two glass panes. The new seal will help prevent condensation, draughts, as well as leaks.
If you spot any problems, you should contact the company that sold you your windows. You should notify the company in writing and ask for confirmation that they have received your notice. Writing everything down will be helpful later if any disputes arise, because it is easier to prove that you did indeed complain.
A window repair specialist might be able to drill a hole in the gap between your windows to remove moisture and make the seal. This is a temporary fix that will not stop moisture from returning. It is also possible to replace the glass unit, to ensure that it is watertight.
Make sure that you only try DIY fixes with the knowledge and skills you have are adequate. Super glue or other DIY solutions can cause more permanent damage. If you aren't sure what to do, it is always advisable to seek out professional advice. You can find an expert in your area who can provide double glazing repairs by entering your postcode into the search box on Checkatrade. All of our tradespeople have been verified and checked for accuracy, so you can trust them to provide a high-quality service.
Broken Seals
Window seals, also known as gas fills, are what hold double-glazed windows in place. They are susceptible to damage due to various elements, including weather conditions, age, and power washing. It is essential to be aware of the signs and the best way to fix them.
When a window seal fails, it allows humid air to get into the two glass panes, creating fog. This is a common issue, and it can also cause the window to appear visually distorted. Once the seal fails, any argon or other inert gas will be removed from the glass, further reducing its insulating properties.
A damaged window seal can be fixed by replacing it with a a new one by an experienced glazier. However, this is costly and might not resolve the fog problem entirely. Certain companies offer defogging solutions which include putting an air pump inside the window frame to eliminate the moisture and make the glass clear. This method is not foolproof, and it doesn't replace inert gasses, meaning that fog may be re-created.
A glazier may also replace the entire IGU (insulated glass unit) if it is beyond repair. This is the most cost-effective solution and is a good option if you're seeking a long-term solution. It is best to choose an option that provides warranties on replacement windows. This will ensure that any issues you may have are covered. You can be certain that your investment will yield the best results. You can also try to avoid the problem by selecting an item of high-quality and following the care instructions that are provided by the manufacturer. This will prolong the life of your window and reduce the need for repairs.